HONG KONG (Reuters) - Apple Inc chief executive Tim Cook paid a visit to Chinese bike-sharing company ofo on Tuesday, as the country's ride-sharing start-ups fight aggressively for investor dollars and market share.<div><a href="http://feeds.reuters.com/~ff/reuters/technologyNews?a=SmihSlHTFUE:hm6TfYOork8:yIl2AUoC8zA"><img src="http://feeds.feedburner.com/~ff/reuters/technologyNews?d=yIl2AUoC8zA" border="0" /></a> <a href="http://feeds.reuters.com/~ff/reuters/technologyNews?a=SmihSlHTFUE:hm6TfYOork8:V_sGLiPBpWU"><img src="http://feeds.feedburner.com/~ff/reuters/technologyNews?i=SmihSlHTFUE:hm6TfYOork8:V_sGLiPBpWU" border="0" /></a> <a href="http://feeds.reuters.com/~ff/reuters/technologyNews?a=SmihSlHTFUE:hm6TfYOork8:-BTjWOF_DHI"><img src="http://feeds.feedburner.com/~ff/reuters/technologyNews?i=SmihSlHTFUE:hm6TfYOork8:-BTjWOF_DHI" border="0" /></a></div><img src="http://feeds.feedburner.com/~r/reuters/technologyNews/~4/SmihSlHTFUE" height="1" width="1" alt="" />